The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 2001
Filed:
Apr. 22, 1997
Applicant:
Inventors:
Maurizio Galimberti, Milan, IT;
Enrico Albizzati, Arona, IT;
Assignee:
Basell Technology Company bv, Hoofddorp, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F 4/64 ;
U.S. Cl.
CPC ...
C08F / ; C08F 4/64 ;
Abstract
Novel copolymers of ethylene with propylene and optionally with minor proportions of a diene or polyene having good elastomeric properties in their uncured state. The copolymers are characterized by a structure in which the propylene is partially present in the form of short isotactic sequences. Tension set values (200%) of less than 15 are obtained by when the ethylene/propylene ratio has specific values and the intrinsic viscosity values are higher than 3.